N?u h?ng ??u không có ??i nh?t b?ng thì ??i ??ng nh?t b?ng x?p h?ng t?ng th? s? ???c ch?n.??i nh?t h?ng ??u B và C không th? n?m cùng nhánh v?i m?t ??i t? h?ng ??u cao h?n.The twelve picked groups were then allotted to paths of 4 teams each. The attract to allocate groups to the various paths was topic to the subsequent basic circumstances:[